Valve



N. MARCUS Oct. 24, 1939.

VALVE Filed Jan. 5, 1938 INVENTOR:

E MTTORNEY Patented Oct. 24, 1939 1 UNITED STATES PATENT OFFECE 1 Claim.

iwhich will have improved, simplified construction and operation, and inwhich the electric motor, operating the valve, will be directly builtthereon, leading to a more efiicient operation than is the case withsuch valves now in use.

Another object of this invention is to provide a valve as characterizedhereinbefore which will occupy less room and will have less parts andwill be cheaper to manufacture than the valves nowused for suchpurposes.

'Still another object of my invention is to provide a pipe fitting for ahot Water heating system,=in combinationiwith my improved valve, whichwill insure that the hotwater passing through the valve will bedistributed evenly, or in a predetermined proportion, in the branches ofthe pipe lines going to variousgroups of radiators.

Still further objects of this invention will be apparent as thespecification of the same proceeds.

In the drawing, forming a .part of this specification, and accompanyingthe same:

Fig. 1 is a diagram showing the assembly of a boiler with my novelvalve, and fitting thereon;

Fig. 2 is a sectional elevation of one embodiment of the valve, thesection being taken on the line 2-2 of Fig. 1, and a link mechanismconnecting the valve and the motor being shown by dot and dash lines inan imaginary manner;

' Fig. 3 is a sectional elevation on line 3-3 of Fig. 1, showing thelink mechanism connecting the motor to the valve, and showing by dot anddash lines, in an imaginary manner, the valve itself when closed, andits position, with the link mechanism, when the valve is open;

Fig. 4 is an elevation, partly in section, of the pipe fitting appliedwhen my novel valve is used in a hot water heating system.

Referring now'to the drawing more in detail, by characters of reference,the numeral I0 indicates my valve in general having an electric motor II directly secured thereon, as will be explained hereinafter.

The valve is secured into a hot water pipe line I2, originating from aboiler I3, and my novel fitting I4 is secured to the valve, distributingthe hot water into the branch pipes I5 and I6, for two groups ofradiators. A hot water heater I1 is also attached to the boiler I3,getting the heating water from the pipe line I2 below the valve IO, asat I8, the cool water leaving said hot water heater at I9 and returningto the boiler as at 2B. The cold water to be heated by the heater I!will enter through the pipe line 2!, and will leave the heater IT, in aheated condition ready to be used, at 22.

My electrical motor controlled valve I0 mainly consists in a casthousing 23, into the lower opening 24 of which is secured the hot waterintake pipe I2, while into the upper opening 25 thereof is secured anexit pipe, or, in the present case, the dividing fitting I l.v I

A valve seat 26 is provided in the casting ID, on which may rest thevalve disk 21 secured in a loose manner with a moderate play on the arm23, as shown, said arm being rotatable with the valve shaft or rockingpin 29.

Three poles or posts 30, 3| and 32 are secured in appropriate positionsin the valve casting I0 and may have sockets 33 for them on the motorhousing to secure the motor on the valve casting.

The motor II may be of any appropriate make or design adapted for thepurpose in view, as will be described hereinafter. A great number ofsuch motors are well known in this art. These motors are controlled by athermostat, as it is well known, the controlling wire, coming from thethermostat and entering into the motor, being shown at 34.

The motor shaft is indicated at 35, and it carries an arm 36 rockabletherewith, which is connected to an arm 37, fast on and rockable withthe valve shaft or rocking pin 29. A link member 38 connects the outerends of the arms 36 and 31 by the pivoted joints 39 and 40. As it iswell known in this art, when the radiators joined on the pipe lines I5and [6 provide too much heat for the rooms in which they are located,the thermostat in said rooms will send an appropriate impulse to themotor II so that the motor shaft 35 will execute a downward rockingmotion, as indicated by the arrow GI, thereby closing the valve disk 2'!on its seat 26, as shown by full lines in Figs. 2 and 3, and the hotwater supply, to the fitting I4 and to the pipe lines I5 and I6, will beclosed.

On the other hand, if'the temperature in the room served by the saidradiators will drop below a certain desired level, the thermostat willsend, through the wire 34, a reverse impulse to the motor I I, causingthe shaft 35 to rock in an opposite direction, that is in the directionof arrow 42, thereby setting the link mechanism 36, 31 and 38 into theposition shown by dot and dash lines in Fig. 3, and opening the valve Itby lifting the valve disk 21 from its seat 26 into the position shown bythe dot and dash lines in Fig. 3.

The hot water now is allowed to pass from the boiler l3 through thevalve l0, into the pipe lines [5 and i6, and to the radiators, until thetemperature of the rooms is raised to the level at which the thermostatwill again act but in the reverse direction.

A further opening 43 may also be provided for the Valve H! to branch offthe hot water, if needed.

As it is known in this art, when two difierent groups of radiators areto'be served from the boiler I3, as it is usual, two hot water exits I2and two valves l must be provided, one for each group of radiators,since it is a well known fact that if one hot water pipe line isprovided with one valve and then the pipe line is branched off beyondthe valve, the hot water will not be distributed between the twobranches in an even manner, or in a predetermined proportion, as

necessitated by the groups of radiators joined on the two branches ofthe hot water pipes, but it will flow to the branches in anundetermined, erratic manner.

I, therefore, developed a new fitting, as indicated at i 4, which may beapplied to a single valve Ill, and whereby a single exit line 12 may beused for the hot water and still both branches l and I6 provided withhot water in a desired predetermined manner.

My novel fitting simply consists of a wider pipe44'secured into the exitopening 25 of the valve l0, said pipe being turned in a desireddirection, as'at 45, for one branch pipe line, in this case for thebranch line l5. Below the turn 45 another outlet branch 46 is providedin the fitting ID for the other branch pipe line, in this case for thebranch line 16. A curved wall or partition 41 is built above the loweroutlet 46, within the pipe 44, entirely crossing the width of same, saidpartition wall 41 being bent downwardly and dividing the inner space inthe pipe line 44 into two portions, 48 and 49, in a desired proportion.That part of the hot water entering into the portion 49 will continue tothe outlet 46, as indicated by the arrow 50, while that part of thehotwater entering the portion 48 will continue upwardly, as indicated bythe arrow 5|, and will exit through the outlet 45.

A communicating hole or opening 52 may be provided in the wall 41, asshown.

WhatI claim as new, is:

In an electrically controlled valve, having a valvehousing, a seat insaid housing, a valve shaft, an arm on said shaft in said housing, avalve disc secured on said arm, movement of said arm to one positionbeing adapted to close the valve, while movement of said arm to anotherposition is adapted to open the valve, and also having an electric motoradapted to rock said valve shaft in one or in the other direction foropening or closing the valve, in combination, a motor housing secured onsaid valve housing and spaced therefrom, a motor shaft and saidvalveshaft projecting into the space between said m0- tor and said valvehousings in opposite directions and spaced apart from one another, anarm on the motor shaft, an arm on the valve shaft,

and a link member at substantially right anglesto said shafts connectingthe ends of said two arms in said space between the two housings.

NATHAN MARCUS.

